सर्वभूतेषु येनैकं भावमव्ययमीक्षते |
अविभक्तं विभक्तेषु तज्ज्ञानं विद्धि सात्विकम् ||
sarva-bhūteṣhu yenaikaṁ bhāvam avyayam īkṣhate
avibhaktaṁ vibhakteṣhu taj jñānaṁ viddhi sāttvikam
जिस ज्ञान से मनुष्य पृथक-पृथक सब भूतों में एक अविनाशी परमात्मभाव को विभागरहित समभाव से स्थित देखता है, उस ज्ञान को तू सात्त्विक जान॥20॥
Understand that knowledge to be in the mode of goodness by which a person sees one undivided imperishable reality within all diverse living beings.
English Translation Of Sri Shankaracharya’s Sanskrit Commentary By Swami Gambirananda
18.20 Viddhi, know; tat, that; jnanam, knowledge, realization of the Self as non-dual, complete realization; to be sattvikam, originating from sattva; yena, through which knowledge; iksate, one sees; ekam, a single; avyayam, undecaying-that which does not undergo mutation either in itself or by the mutation of its alities-‘ i.e. eternal and immutable; bhavam, Entity-the word bhava is used to imply an entity-, i.e. the single Reality which is the Self; sarvabhutesu, in all things, in all things begining from the Unmanifest to the unmoving things; and through which knowledge one sees that Entity to be avibhaktam, undivided; in every body, vibhaktesu, in all the deversified things, in the different bodies. The idea is: that Reality which is the Self remains, like Space, undivided.
Being based on rajas and tamas, those that are the dualistic philosophies are incomplete, and hence are not by themselves adeate for the eradication of worldly existence.